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01 Record

CVE-2021-25339

Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory.

MediumPUBLISHEDCNA: Samsung Mobile
CNA base score4.4 CVSS v3.xCVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L
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02 Description

Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory.

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.11% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 2.0% of scored records. A rank, not a probability.
NVD base score
5.2 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-03-04 21:00Z5 YR AGO
Last updated
2024-08-03 20:03Z2 YR AGO
Reserved
2021-01-19
Assigning CNA
Samsung Mobile
Record state
PUBLISHED
Severity
Medium (CVSS 4.4)
CNA CVSS vector
CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L
Weaknesses
  • CWE-20Improper Input ValidationClass
Data version
5.1
Document digest
827ef654a9772ff25c0b2af7c0f0b92212da758b321f37c94a8c7b9776c80051

05 Affected products

VendorProductVersionsPlatforms
Samsung MobileSamsung Mobile DevicesSelected Q(10.0), R(11.0) to < SMR Mar-2021 Release 1—

06 References